So, we (I'm the backend guy and work with a UI dev) are building this product portfolio management tool for our client and they have a set of 250 users. The team has two point of contacts for the 250 users who maintain the master data, help users with data quality, tool guidance, reporting and other stuff. So one day one of these two support users come to me and say : Hey I'm not able to add new transactions coz a customer is missing.

We have the provision to create / maintain customers.

I check the production DB, application code, try creating the customer and then the transaction, everything works perfectly fine.

I ask the user for a screen sharing session, the user starts reproducing the error like this :

We have a 3 system landscape - Dev / Test and Prod

U : Logs into the test system url, creates the customer.

U : Points out the toast saying customer creation is successful.

U : opens a new tab, opens the production system, tries creating the transaction, searches for the customer and says " see !! cant find the customer here ! the master data management apps never work !! "

FML?.