[Home](./index.md) > [ibm-cloud-sdk-core](./ibm-cloud-sdk-core.md) > [VpcInstanceAuthenticator](./ibm-cloud-sdk-core.vpcinstanceauthenticator.md) > [setIamProfileCrn](./ibm-cloud-sdk-core.vpcinstanceauthenticator.setiamprofilecrn.md) ## VpcInstanceAuthenticator.setIamProfileCrn() method Sets the "iamProfileCrn" value to be used when obtaining an IAM access token **Signature:** ```typescript setIamProfileCrn(iamProfileCrn: string): void; ``` ## Parameters

Parameter	Type	Description
iamProfileCrn	string	the CRN of the linked IAM trusted profile to use when obtaining an IAM access token

**Returns:** void