What is the difference between the SPA ID and Package ID?

The package ID is an auto-generated ID consists of the two letter state abbreviation, the year, the authority in this case MH for Medicaid Health Homes, an automatic number assignment, and the letter O for official or D for draft. The package ID is used to track this submission package. The SPA ID (SS-YY-NNNN-xxxx) is assigned by the State in Official Submission Packages and consists of the State abbreviation (SS), they year (YY), a four-character sequence number (NNNN), and four-character optional alpha and numeric (xxxx).