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Three settings in Concurrency & Pacing decide how fast a campaign works through your list. They exist for two reasons: your minutes are finite, and a list dialled all at once is both a bad experience for whoever has to answer the callbacks and a good way to get a number flagged.

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Before you start

  • A campaign with contacts. See Add contacts to a campaign.
  • Five minutes.
  • Your plan’s minute allowance and simultaneous call limit. See Limits.
  • You will be working in the Concurrency & Pacing section of the campaign’s Settings tab.

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Steps

1

Open Concurrency & Pacing

Open the campaign, go to Settings, and expand Concurrency & Pacing.
2

Set Calls per day

This is the most useful of the three. It caps the most calls this campaign places in one day, including follow up calls from later steps.Set it deliberately low for a first run. A cap of 20 on day one tells you what your list is worth before you commit the rest of your minutes to it.
3

Set Max concurrent calls

The most calls this campaign places at the same time. Leave it blank for no campaign specific limit, in which case your workspace limit still applies.Set it below your workspace limit when you want to keep capacity free for inbound calls, which is almost always the right thing to do during business hours.
4

Set a Minimum gap between dials

Wait at least this long, in seconds, between consecutive dials. Leave it blank for no gap.A gap of 10 to 30 seconds smooths a campaign out so calls trickle rather than burst.
5

Run a day and check the numbers

Watch placed today against your cap on the Contacts tab. See Add contacts to a campaign.

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You will know it worked when

placed today stops at your daily cap rather than climbing to your list size, and inbound callers still get through while the campaign is running.

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What each setting does

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Working out a daily cap

Do the arithmetic before the campaign does it for you. Take your monthly minute allowance, subtract what your inbound calls use, and divide what is left by your average campaign call length. A worked example. You have 600 minutes on Pro, inbound uses about 300 a month, and your campaign calls average 2 minutes:
  • 300 minutes left, divided by 2 minutes, is about 150 campaign calls a month.
  • Over 20 working days, that is roughly 7 calls a day.
If that number feels too small for your list, the answer is a bigger plan or a shorter list, not a bigger cap. See What will this cost me and What counts towards my usage.

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Leaving room for inbound calls

This is the mistake that costs real money. Your simultaneous call limit is shared: a campaign running at full concurrency during business hours will take the capacity your actual customers need to reach you. Set Max concurrent calls to roughly half your workspace limit if the campaign runs in business hours, or narrow the calling window so the campaign runs when your phones are quiet. See How many calls at once and Choose when calls go out.

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Pacing protects your number too

A burst of calls from one number, especially to mobiles, is what carrier spam detection looks for. A campaign that trickles is less likely to end up flagged than one that empties a list in twenty minutes, and a flagged number stops working for everybody, including your inbound callers. The same logic applies to text and email steps. See Add a text message step.

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What else you can do here

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If it did not work

The campaign is slower than your cap. Something else is the bottleneck: the calling window, the minimum gap, your workspace concurrency limit, or step delays. The tightest of them wins. placed today went past your cap. The cap counts calls this campaign places. A contact in two campaigns is counted by each one separately, so two campaigns with a cap of 20 can produce 40 calls to your list. Inbound callers get a busy line while the campaign runs. Concurrency is being taken by the campaign. Lower Max concurrent calls or move the campaign outside business hours. You cannot set concurrency above a certain number. Your workspace limit is the ceiling. See Limits. The campaign burned your minutes in one day. There was no daily cap. Set one now, and check What counts towards my usage to see where they went.

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FAQ

Set Calls per day in Concurrency & Pacing on the campaign’s Settings tab. It caps the total dials in a day, including follow up calls from later steps. Do this before your first big run.
Set a daily cap worked out from your allowance. Take your monthly minutes, subtract inbound usage, divide by your average call length, and divide again by working days in the month.
It can, because the simultaneous call limit is shared. Set Max concurrent calls below your workspace limit, or run the campaign outside your busy hours. See How many calls at once.
Ten to thirty seconds if you want a steady trickle rather than a burst. Blank means no gap, which is fine for small lists and worth avoiding on large ones.
Yes. It is the most calls the campaign places in one day, whichever step they come from, so a sequence with two call steps shares one cap.
It helps. Carrier spam detection reacts to bursts of calls from one number, so trickling a list is safer than emptying it. It is not a guarantee, and a flagged number affects inbound calls too.
They wait and are called the next day when the cap resets. Nothing is dropped because of pacing.