Hello all,
I began seeing a red error message on a new form I began work on yesterday, but I cannot find an explanation! The error message indicates only that an error has occurred, and not much more than that. I researched this error message string and concluded that some kind of list threshold has been exceeded, but I can't find out what threshold that is.
This link indicates that there are several dozens of columns of each type that should be okay. I thought maybe because none of my fields are required that this would be an issue. However, after re-requiring the Title column this issue persisted. I recall previously that a list required at least one single line of text. I guess this is no longer the case? I created a test list and a test form and it gave no fuss over the Title field/any other field being required.
At any rate, the only other messages I've found about this are related to having too many lookup fields, or the message marked as an answer was not an answer:
Too many lookup columns – I only have four lookup columns, and another of my lists with more lookup columns is behaving well enough.
"Issue resolved, no idea why" – no answer
Fixed by adding a redundant data source and changing all formulas to it – this answer, while plausible and also frustrating, didn't work for me (see screenshots).
"Couldn't reproduce the issue, try recreating everything from scratch!" – this cannot be an answer. It was working yesterday.
Simply put, if I have to delete the data source and re-link it, all my data cards are shot! All the formulas are shot!
This is every column in my list (I don't see how I could be over one of the limits):
| Single line of text |
| Person or Group |
| Single line of text |
| Person or Group |
| Single line of text |
| Date and Time |
| Date and Time |
| Choice |
| Lookup |
| Lookup |
| Currency |
| Lookup |
| Lookup |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Multiple lines of text |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Date and Time |
| Yes/No |
| Person or Group |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Currency |
| Person or Group |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Choice |
| Hyperlink or Picture |
| Single line of text |
| Number |
| Number |
| Number |
| Number |
| Number |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Single line of text |
| Date and Time |
| Date and Time |
| Person or Group |
| Person or Group |


I really appreciate anybody taking the time to investigate this issue. It's quite silly. I don't have time to recreate an entire form from scratch. That kind of timesink wasn't a part of the deal!