Is your organization registered in SAM.gov (System for Award Management)? If so, then you need to be aware of a change that goes into effect on 4/4/2022. Currently, the authoritative unique entity identifier used by the federal government is the DUNS Number. The DUNS number is a 9-character numeric value and is managed, granted and owned by Dun and Bradstreet. Effective 4/4/2022, the authoritative unique entity identifier will change to a Unique Entity ID (UEI). The Unique Entity ID is a 12- character alphanumeric value that will be managed granted and owned by the federal government.
The purpose of this change is to streamline the process in working with the federal government by having the identifier assigned during the registration process instead of going through a third party. Please note that the move from DUNs to UEI is a federal government wide initiative. For example, if you search for grant opportunities or apply for federal grants on grants.gov, you will notice that grants.gov has already begun the transition to UEI. Each federal agency will implement their own transition plan prior to 4/4/2022.
If your organization is registered in SAM.gov, your organization has already been assigned its UEI(SAM) and no action is needed. If you are not registered in SAM.gov and you wish to do business with federal government before 4/4/22 go to D&B and get a DUNS Number, then go to SAM.gov to register your entity. You will be assigned a Unique Entity ID (SAM) as a part of the SAM.gov registration process. After 4/4/22, you will be assigned a Unique Entity ID (SAM) as part of the SAM.gov registration process. You no longer need to obtain a DUNS Number for registration.
Some action you can take now is to verify that your system accounts will accommodate the Unique Entity ID (SAM) and update any DUNS # field on report templates to reflect the new UEI (SAM) for reports due after 4/4/2022.
Below is a screenshot of an entity record in SAM.gov showing UEI (SAM). 
If you have questions about this change, you may search for articles and resources on fsd.gov or email Becky.Heisinger@sdaho.org.
