# Plan Modifiers ## Create PlanModifier - [POST /plans/{planID}/modifiers](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/createplanmodifier.md): Creates a new PlanModifier ## List PlanModifier - [GET /plans/{planID}/modifiers](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/listplanmodifier.md): Lists all PlanModifier for the given planID ## Get PlanModifier - [GET /plans/{planID}/modifiers/{modifier}/effective-dates/{effectiveDate}](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/getplanmodifier.md): Gets PlanModifier ## Update PlanModifier - [PUT /plans/{planID}/modifiers/{modifier}/effective-dates/{effectiveDate}](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/updateplanmodifier.md): Updates a specific PlanModifier. ## Delete PlanModifier - [DELETE /plans/{planID}/modifiers/{modifier}/effective-dates/{effectiveDate}](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/deleteplanmodifier.md): Deletes an PlanModifier ## Create or Update Batch PlanModifier - [PUT /plans/{planID}/modifiers-batch](https://vbapi-docs.vbasoftware.com/openapi/vbasoftware.api/plan-modifiers/updatebatchplanmodifier.md): Create or Update multiple PlanModifier at once. If the entity exists, it will be updated. If the entity does not exist, it will be created.