Retrieve all tasks, email, appointments, phone call activities for contacts

[Rav_Chadha]

Hi Team,

I am trying to build a flow to retrieve all the tasks, email, appointments, phone call activities for contacts and then compare the created on among the retrieved records and finally update a custom field on a contact record 'Last Follow up' with the value of the activity record having greater created on value.

However, looks like the flow is failing on the very first step 'List Activities' with an error: Http request failed as there is an error: 'Cannot write more bytes to the buffer than the configured maximum buffer size: 104857600.'.

Is this because the data is beyond the threshold value? If so, is there any other way to achieve this?

[Johnnyg · Accepted solution]

Good day Rav,

There is a limit in message size of a single outgoing request, the max message size is 100 MB and not all APIs support the full 100 MB.

https://docs.microsoft.com/en-us/power-automate/limits-and-config

Currently it's by design and no way to increase the limit while I reckon you could add filter condition to get less data or vote for corresponded Idea post: https://powerusers.microsoft.com/t5/Power-Automate-Ideas/Increase-the-maximum-buffer-size-from-100/i...