'Google Sheet - Force a linked spreadsheet to refresh

I'm pulling a realtime quote from "spreadsheet B" into "spreadsheet A" through:

=IMPORTRANGE("url";"A1").

For some kind of reason the referenced cell in "spreadsheet A" is blank until I open "spreadsheet B". This will kickstart the realtime quotes and they will be updated also in "spreadsheet A".

It's worth mentioning that "spreadsheet B" is using a custom "apps script" in order to pull in those realtime cryptocurrency quotes.

Is there a way to have the calculations in "spreadsheet B" kickstarted only by accessing "spreadsheet A"? Thanks all!



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