Warningfororders entered with RSD on weekends/holidays or when warehouse is above capacity on a date

Summary:

Need a warning pop up if we have entered or if order comes over EDI with a weekend or holiday ship date or if warehouse is above capacity on a specific date.

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what are the available configurations to meet this requirement

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):