# Registration Substitutions

Registration Substitutions

## Creates a new registration substitution record that does not already exist.

 - [POST /registrationSubstitutions/{tenantId}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/createregistrationsubstitution.md): This method will auto-generate an ID and create a new registration substitution. If an ID is specified for the registration substitution, an error will be thrown.

## Execute Batch Operations

 - [POST /registrationSubstitutions/{tenantId}/batch](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/executebatchoperations.md): TAllows you to perform up to 100 parallel patch/delete operations

## Returns a list of records with the specified event_id

 - [GET /registrationSubstitutions/{tenantId}/event/{event_id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/listsubstitutionsbyeventid.md): Returns a list of records with the specified event_id

## Returns a list of records with the specified new_contact_id

 - [GET /registrationSubstitutions/{tenantId}/newContact/{new_contact_id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/listsubstitutionsbynewcontactid.md): Returns a list of records with the specified new_contact_id

## Returns a list of records with the specified previous_contact_id

 - [GET /registrationSubstitutions/{tenantId}/previousContact/{previous_contact_id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/listsubstitutionsbypreviouscontactid.md): Returns a list of records with the specified previous_contact_id

## Returns a list of records with the specified registration_id

 - [GET /registrationSubstitutions/{tenantId}/registration/{registration_id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/listsubstitutionsbyregistrationid.md): Returns a list of records with the specified registration_id

## Returns a registration substitution from the system by its ID.

 - [DELETE /registrationSubstitutions/{tenantId}/{id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/deleteregistrationsubstitution.md): This method will delete a registration substitution with the specified ID.

## Returns a registration substitution from the system by its ID.

 - [GET /registrationSubstitutions/{tenantId}/{id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/getregistrationsubstitution.md): This method will look up a registration substitution by the specified ID and return it back.

## Partially updates a registration substitution with the specified ID.

 - [PATCH /registrationSubstitutions/{tenantId}/{id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/patchregistrationsubstitution.md): This method will patch an existing registration substitution with the specified ID, using the HTTP PATCH specification.

## Updates a registration substitution with the specified ID.

 - [PUT /registrationSubstitutions/{tenantId}/{id}](https://docs.api.rhythmsoftware.com/apis/events/events-v1/registration-substitutions/updateregistrationsubstitution.md): This method will update an existing registration substitution with the specified ID.