Because payer, payee, and creator columns on mcapi_transactions table are set as small integer, they cannot store larger uids. It should be integer as in users table.

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tutumlum created an issue. See original summary.

matslats’s picture

matslats CreditAttribution: matslats as a volunteer and commented
Status: Active » Closed (fixed)

Thanks I've pushed a fix with an update function to dev but not tagged it.
Most sites using the module are pretty small, can I ask how you are using on a site with more than a million users?

tutumlum’s picture

tutumlum CreditAttribution: tutumlum commented

:) Actually it is not more than a million users. Only assigned people can register users to my system via a custom module which is producing uid with a definite pattern..