SLA Error - You must add an application qualifier to uniquely identify the source

Hi,

We are creating the Receivable SLA rule for Country code update.

As of now country segment we are deriving from Site where the autoaccounting rule setup as "Site", so that based on customer site information the country updating in invoice distributions.

Now, the business need for one Transaction source "MM-Deduction" country should be default as "0000", so we are trying to create the account rule for country segment.

Rule

Value Type : Constant

Value = 0000

Rule Condition:

"Transaction Source Name" = MARKET MEDIUM.

But we are getting error: You must add an application qualifier to uniquely identify the source. There's more than 1 source named Transaction Source Name. (XLA-871117)