Prevent users from entering dates that put other tasks in the past

Our project managers are responsible for creating new projects in our schedule. They enter a install start date and contract date. The dates for all the other tasks are formula driven from the install date. The image below shows our engineering tasks. Those 3 projects where entered within the past two days. All of our tasks where supposed to be completed last month or in December. It's impossible for us to do this unless time travel is real. Is there anyway to prevent them from entering a install date that doesn't allow any of the tasks to be completed after today's date. A warning or something to notify them that the install start date must be moved up to allow for engineering thru shipping. Any help would be appreciated.

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Want to practice working with formulas directly in Smartsheet?

Check out theFormula Handbook template!
Try this:<\/p>

=COUNTIFS([Item Number]:[Item Number], OR(@cell = \"C001\", @cell = \"COO2\", @cell = \"COO3\", @cell = \"COO4\"), [Status]:[Status], OR(@cell = \"Green\", @cell = \"Yellow\", @cell = \"Red\"))<\/p>"}]}},"status":{"statusID":3,"name":"Accepted","state":"closed","recordType":"discussion","recordSubType":"question"},"bookmarked":false,"unread":false,"category":{"categoryID":322,"name":"Formulas and Functions","url":"https:\/\/community.smartsheet.com\/categories\/formulas-and-functions","allowedDiscussionTypes":[]},"reactions":[{"tagID":3,"urlcode":"Promote","name":"Promote","class":"Positive","hasReacted":false,"reactionValue":5,"count":0},{"tagID":5,"urlcode":"Insightful","name":"Insightful","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":11,"urlcode":"Up","name":"Vote Up","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":13,"urlcode":"Awesome","name":"Awesome","class":"Positive","hasReacted":false,"reactionValue":1,"count":0}],"tags":[{"tagID":254,"urlcode":"formulas","name":"Formulas"}]},{"discussionID":109490,"type":"question","name":"HAS exact match within multiselect - Numbered Values","excerpt":"Scenario: Trying to identify a match if a value shows up in a multiselect from another sheet. Approach: I'm able to get 95% of this done through an index(collect(contains))) formula, but having some false positives show up wherever a partial match is found. I later found some suggestions that (has) would be more…","snippet":"Scenario: Trying to identify a match if a value shows up in a multiselect from another sheet. Approach: I'm able to get 95% of this done through an index(collect(contains)))…","categoryID":322,"dateInserted":"2023-08-25T19:26:32+00:00","dateUpdated":null,"dateLastComment":"2023-08-26T00:49:48+00:00","insertUserID":154049,"insertUser":{"userID":154049,"name":"Rob W.","url":"https:\/\/community.smartsheet.com\/profile\/Rob%20W.","photoUrl":"https:\/\/us.v-cdn.net\/6031209\/uploads\/defaultavatar\/nWRMFRX6I99I6.jpg","dateLastActive":"2023-08-26T00:49:37+00:00","banned":0,"punished":0,"private":false,"label":"✭"},"updateUserID":null,"lastUserID":154049,"lastUser":{"userID":154049,"name":"Rob W.","url":"https:\/\/community.smartsheet.com\/profile\/Rob%20W.","photoUrl":"https:\/\/us.v-cdn.net\/6031209\/uploads\/defaultavatar\/nWRMFRX6I99I6.jpg","dateLastActive":"2023-08-26T00:49:37+00:00","banned":0,"punished":0,"private":false,"label":"✭"},"pinned":false,"pinLocation":null,"closed":false,"sink":false,"countComments":2,"countViews":16,"score":null,"hot":3386003780,"url":"https:\/\/community.smartsheet.com\/discussion\/109490\/has-exact-match-within-multiselect-numbered-values","canonicalUrl":"https:\/\/community.smartsheet.com\/discussion\/109490\/has-exact-match-within-multiselect-numbered-values","format":"Rich","lastPost":{"discussionID":109490,"commentID":392694,"name":"Re: HAS exact match within multiselect - Numbered Values","url":"https:\/\/community.smartsheet.com\/discussion\/comment\/392694#Comment_392694","dateInserted":"2023-08-26T00:49:48+00:00","insertUserID":154049,"insertUser":{"userID":154049,"name":"Rob W.","url":"https:\/\/community.smartsheet.com\/profile\/Rob%20W.","photoUrl":"https:\/\/us.v-cdn.net\/6031209\/uploads\/defaultavatar\/nWRMFRX6I99I6.jpg","dateLastActive":"2023-08-26T00:49:37+00:00","banned":0,"punished":0,"private":false,"label":"✭"}},"breadcrumbs":[{"name":"Home","url":"https:\/\/community.smartsheet.com\/"},{"name":"Get Help","url":"https:\/\/community.smartsheet.com\/categories\/get-help"},{"name":"Formulas and Functions","url":"https:\/\/community.smartsheet.com\/categories\/formulas-and-functions"}],"groupID":null,"statusID":3,"image":{"url":"https:\/\/us.v-cdn.net\/6031209\/uploads\/KJPRLKL2FW16\/capture-png.png","urlSrcSet":{"10":"","300":"","800":"","1200":"","1600":""},"alt":"Capture.PNG"},"attributes":{"question":{"status":"accepted","dateAccepted":"2023-08-26T00:49:35+00:00","dateAnswered":"2023-08-25T23:58:23+00:00","acceptedAnswers":[{"commentID":392688,"body":"

Hi, <\/p>

Instead of applying the formula to \"Multiselect Text String\" row, did you tried with \"Multiselect Values\" row?<\/p>

=IF(HAS([Multiselect Values]@row, [Component ID]@row), \"MATCH\", \"NO MATCH\")<\/p>

Thank you,<\/p>"}]}},"status":{"statusID":3,"name":"Accepted","state":"closed","recordType":"discussion","recordSubType":"question"},"bookmarked":false,"unread":false,"category":{"categoryID":322,"name":"Formulas and Functions","url":"https:\/\/community.smartsheet.com\/categories\/formulas-and-functions","allowedDiscussionTypes":[]},"reactions":[{"tagID":3,"urlcode":"Promote","name":"Promote","class":"Positive","hasReacted":false,"reactionValue":5,"count":0},{"tagID":5,"urlcode":"Insightful","name":"Insightful","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":11,"urlcode":"Up","name":"Vote Up","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":13,"urlcode":"Awesome","name":"Awesome","class":"Positive","hasReacted":false,"reactionValue":1,"count":0}],"tags":[]},{"discussionID":109474,"type":"question","name":"Help with date calculation formula","excerpt":"Hello, I'm trying to find a formula that will help me calculate how long an intake took to resolve. The rows I need to be calculated are Date Reported & Resolution Date. If the resolution date is blank I want it to use the current date in the calculation to see how long this issue has gone unresolved. Any help is much…","snippet":"Hello, I'm trying to find a formula that will help me calculate how long an intake took to resolve. The rows I need to be calculated are Date Reported & Resolution Date. If the…","categoryID":322,"dateInserted":"2023-08-25T16:29:39+00:00","dateUpdated":"2023-08-25T16:29:59+00:00","dateLastComment":"2023-08-25T23:01:30+00:00","insertUserID":165688,"insertUser":{"userID":165688,"name":"Nwest","title":"Systems Analyst","url":"https:\/\/community.smartsheet.com\/profile\/Nwest","photoUrl":"https:\/\/aws.smartsheet.com\/storageProxy\/image\/images\/u!1!ukHVZ18ImX4!BcjWAe8S9SY!l7iQo_PZHOx","dateLastActive":"2023-08-25T17:22:30+00:00","banned":0,"punished":0,"private":false,"label":"✭"},"updateUserID":165688,"lastUserID":8888,"lastUser":{"userID":8888,"name":"Andrée Starå","title":"Smartsheet Expert Consultant & Partner | Workflow Consultant \/ CEO @ WORK BOLD","url":"https:\/\/community.smartsheet.com\/profile\/Andr%C3%A9e%20Star%C3%A5","photoUrl":"https:\/\/us.v-cdn.net\/6031209\/uploads\/userpics\/0PAU3GBYQLBT\/nXWM7QXGD6464.jpg","dateLastActive":"2023-08-26T14:46:22+00:00","banned":0,"punished":0,"private":false,"label":"✭✭✭✭✭✭"},"pinned":false,"pinLocation":null,"closed":false,"sink":false,"countComments":3,"countViews":23,"score":null,"hot":3385987269,"url":"https:\/\/community.smartsheet.com\/discussion\/109474\/help-with-date-calculation-formula","canonicalUrl":"https:\/\/community.smartsheet.com\/discussion\/109474\/help-with-date-calculation-formula","format":"Rich","tagIDs":[254],"lastPost":{"discussionID":109474,"commentID":392687,"name":"Re: Help with date calculation formula","url":"https:\/\/community.smartsheet.com\/discussion\/comment\/392687#Comment_392687","dateInserted":"2023-08-25T23:01:30+00:00","insertUserID":8888,"insertUser":{"userID":8888,"name":"Andrée Starå","title":"Smartsheet Expert Consultant & Partner | Workflow Consultant \/ CEO @ WORK BOLD","url":"https:\/\/community.smartsheet.com\/profile\/Andr%C3%A9e%20Star%C3%A5","photoUrl":"https:\/\/us.v-cdn.net\/6031209\/uploads\/userpics\/0PAU3GBYQLBT\/nXWM7QXGD6464.jpg","dateLastActive":"2023-08-26T14:46:22+00:00","banned":0,"punished":0,"private":false,"label":"✭✭✭✭✭✭"}},"breadcrumbs":[{"name":"Home","url":"https:\/\/community.smartsheet.com\/"},{"name":"Get Help","url":"https:\/\/community.smartsheet.com\/categories\/get-help"},{"name":"Formulas and Functions","url":"https:\/\/community.smartsheet.com\/categories\/formulas-and-functions"}],"groupID":null,"statusID":3,"attributes":{"question":{"status":"accepted","dateAccepted":"2023-08-25T17:04:22+00:00","dateAnswered":"2023-08-25T16:36:59+00:00","acceptedAnswers":[{"commentID":392622,"body":"

\n \n https:\/\/community.smartsheet.com\/discussion\/109474\/help-with-date-calculation-formula\n <\/a>\n<\/div>\n

Hi, <\/p>

I hope you're well and safe!<\/p>

Try something like this.<\/p>

=IF([Date Reported]@row <> \"//www.santa-greenland.com/community/discussion/40801/\", IF([Resolution Date]@row = \"//www.santa-greenland.com/community/discussion/40801/\", NETDAYS([Date Reported]@row, TODAY()), NETDAYS([Date Reported]@row, [Resolution Date]@row)))<\/p>

Did that work\/help? <\/p>

I hope that helps!<\/p>

Be safe, and have a fantastic weekend!<\/p>

Best,<\/p>

Andrée Starå<\/strong><\/a> | Workflow Consultant \/ CEO @ WORK BOLD<\/strong><\/a><\/p>

Did my post(s) help or answer your question or solve your problem? Please support the Community by <\/em>marking it Insightful\/Vote Up, Awesome, or\/and as the accepted answer<\/em><\/strong>. It will make it easier for others to find a solution or help to answer!<\/em><\/p>"}]}},"status":{"statusID":3,"name":"Accepted","state":"closed","recordType":"discussion","recordSubType":"question"},"bookmarked":false,"unread":false,"category":{"categoryID":322,"name":"Formulas and Functions","url":"https:\/\/community.smartsheet.com\/categories\/formulas-and-functions","allowedDiscussionTypes":[]},"reactions":[{"tagID":3,"urlcode":"Promote","name":"Promote","class":"Positive","hasReacted":false,"reactionValue":5,"count":0},{"tagID":5,"urlcode":"Insightful","name":"Insightful","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":11,"urlcode":"Up","name":"Vote Up","class":"Positive","hasReacted":false,"reactionValue":1,"count":0},{"tagID":13,"urlcode":"Awesome","name":"Awesome","class":"Positive","hasReacted":false,"reactionValue":1,"count":0}],"tags":[{"tagID":254,"urlcode":"formulas","name":"Formulas"}]}],"initialPaging":{"nextURL":"https:\/\/community.smartsheet.com\/api\/v2\/discussions?page=2&categoryID=322&includeChildCategories=1&type%5B0%5D=Question&excludeHiddenCategories=1&sort=-hot&limit=3&expand%5B0%5D=all&expand%5B1%5D=-body&expand%5B2%5D=insertUser&expand%5B3%5D=lastUser&status=accepted","prevURL":null,"currentPage":1,"total":10000,"limit":3},"title":"Trending in Formulas and Functions ","subtitle":null,"description":null,"noCheckboxes":true,"containerOptions":[],"discussionOptions":[]}">

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