COLUMBIA, S.C. (AP) — People shopping for insurance on the federal marketplace may be informed they're eligible for Medicaid and that their information is being sent to state officials to sign them up. However, states aren't able enroll them because they're not receiving usable data from the Obama administration.

The Center for Medicare and Medicaid Services wrote a memo to the 36 states using the federal website last week acknowledging the information wasn't being transferred automatically and saying another system was being developed to send it. More complete files could be sent as soon as next week.

The problem with Medicaid coordination could affect tens of thousands of applicants and represents the latest issue to arise in the rollout of a website that's been plagued with long waits for users and other glitches.