> ## Documentation Index > Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt > Use this file to discover all available pages before exploring further. # Sequential Execution > YiDA Dedicated edition supports configuring Integration & Automation flows to run sequentially, which is suited to scenarios where data has upstream-downstream dependencies. Once On, multiple instances of the same integration & automation flow are executed one Record at a time in sequence, which fits flows whose runtime instances depend on one another. This topic introduces sequential execution for integration & automation flows in YiDA Dedicated edition and when to use it, for example, in scenarios such as retrieving and updating inventory. The original execution mode of integration & automation flows defaults to **parallel**: when multiple records trigger the same integration & automation flow, they are executed concurrently. Execution is faster, and this fits flows whose runtime instances do not affect one another. Once sequential execution is On, multiple records will be executed one at a time, which is slower and fits flows whose runtime instances have upstream-downstream dependencies. Once sequential execution is On, multiple instances of the integration & automation flow will be executed one at a time, and execution speed may be relatively slow. Enable it with care as needed.