Losing data when sharing a file

prigby 

While there are a number of possible explanations for this problem, we can only speculate given the fact that we have to visibility to the other user's computer.

In addition to the possibility already suggested, it could be something like that other user "thinking" they are using the same accdb, but really using a different one. For example, if Access crashes and creates a backup copy, that user could inadvertently be using that backup and only seeing the missing data when sending the original to you. Unfortunately, that is also only one possible scenario.

Your task is to work closely with your colleague, perhaps through a remote desktop session using an application like TeamViewer, to trace what is really going on.

Unfortunately, we are at an even greater disadvantage without the full context of the situation available.