Strategy conflicts and simultaneous signals: preventing automation from fighting itself

An account position may be shared at the broker even when the platform tracks several strategies separately. Traders need to decide whether each strategy owns a virtual portion, whether only one strategy may control a symbol, or whether positions are intentionally netted.

Without a clear model, one strategy can close another strategy's position or interpret a manually held position as its own.

Common rules include block opposite entries, close before reverse, allow exits before entries, limit one active strategy per symbol, or use one strategy as a conflict filter that never places orders itself.

The rule should be deterministic. When signals arrive close together, the platform should record which instruction won, which was blocked, and why.

Send opposing alerts seconds apart and at the same timestamp. Test duplicate entries, partial fills, manual closes, and stale broker positions. Confirm that account exposure never briefly exceeds the intended limit during a reversal.

Conflict control belongs at the account and execution layer as well as inside strategy code. A chart script may not know what another strategy or a manual trader is doing.