eBay will report an error when, following a synchronization, it receives the identifier of a sales rule that it cannot recognize. This may occur because the identifier is outdated, meaning it belongs to a rule that has been removed from the account, or because it belongs to a different eBay account than the one currently linked to the module. The latter case is particularly common if the module has been previously used with another eBay account and the rules have not been updated.
The identifier of a sales rule is a unique number that eBay assigns to each rule, specifically associated with one’s own eBay account.
It’s important to note that the module retains in its database the identifiers of the rules, which can be downloaded using the “UPDATE” button found in the “Sales Rules” section. If these rules are modified on eBay, they might receive new identifiers. Consequently, it’s necessary to re-download the rules in the module using the aforementioned button and correctly remap them so that the module can update its internal association.