Rollup Function Issue

[Rian_O]

Hi,

I have been having troubles with the ‘rollup’ field function. Every time I use it, it gives me this error message: Sorry, there was a problem saving this field. Invalid formula. Please check your formula text.

Some context:

As you can see, the field all the way to the right is linked with the other table:


The second table is a feed of forms being submitted. In those forms being submitted, I want the “flight time” (duration field) to add up to the Flight time field in the first base, which is not working due to the formula being ‘invalid’.

Thank you in advance.

[Raminder_Singh · Accepted solution]

Looks like your formula for rollup is empty. In you Flight Time field you need to enter a formula under the Aggregation formula which rolls up the values in each linked record section

[Rian_O]

That worked. Thanks a lot!