Hello:) The Problem is that Hekili often didnt say when i have to use Soul reaper. the Target is shortly at 35% or he is at 35% and Hekili didnt tell me that i have to use Soul Reaper.

1.  The information from the Issue Reporting tab ( /hekili > Issue Reporting ).  This provides your talent and gear information.  You can paste it to pastebin.com and provide a link here.

PUT ISSUE REPORT LINK HERE: build: v9.0.5-1.0.5
level: 48 (48)
class: DEATHKNIGHT
spec: unholy

talents: all_will_serve
deaths_reach
soul_reaper
unholy_blight
unholy_pact
wraith_walk

pvptalents: none

covenant: none

conduits: none

soulbinds: []

sets: none

gear: beinschtzer_der_fatalen_konsonanz = 1
beschlagener_halsreif_des_verdammten = 1
blutrote_kehlenquetscher = 1
frostumhllter_plattengrtel = 1
gelenkschnallen_der_rechtschaffenen_abrechnung = 1
goldstahlbrustschutz = 1
krakenschulterstcke = 1
langer_frostblutumhang = 1
nie_endender_hunger = 1
ring_der_eisigen_stimmung = 1
schienbeinschtzer_des_verrters = 1
schneeblindschlchter = 1
talisman_der_tundra = 1
thorasus_das_steinerne_herz_draenors = 1
trainingshelm_der_vrykul = 1

legendaries: none

itemIDs: 109894, 112361, 113685, 124236, 124325, 124337, 124634, 127979, 127984, 36377, 37556, 42799, 42864, 42878, 44361

settings: aoe = 2
buffPadding = 0
custom1Name = Custom 1
custom2Name = Custom 2
cycle = true
cycleDebuff = festering_wound
cycle_min = 6
damage = true
damageDots = false
damageExpiration = 8
damagePets = false
damageRange = 0
debuffPadding = 0
enabled = true
enhancedRecheck = true
gcdSync = true
maxRefresh = 10
maxTime = 33
nameplateRange = 8
nameplates = true
package = Unholy
petbased = false
potion = potion_of_spectral_strength
potionsReset = 20180919.1
throttleRefresh = false
throttleTime = false

toggles: cooldowns = false
custom1 = false
custom2 = false
defensives = false
essences = true
interrupts = false
mode = dual
potions = false

2.  If reporting a disagreement with the addon's recommendations, please take a snapshot when you observe the issue and provide the snapshot.  This is not a screenshot.  A snapshot can be generated by binding the Pause feature on the Toggles tab.  When you press Pause, a snapshot of how the addon decided on its CURRENT recommendations is generated and saved to the Snapshots tab.  Copy and paste this to pastebin.com and provide the link here.

3.  If reporting an error (i.e., the addon freezes and/or disables itself), please install the BugSack and BugGrabber addons as they will enable you to paste the exact error message, with detail that will help me identify where the code error is located.  You can paste the error information here or use pastebin.com for that as well.

PUT ERROR MESSAGE(S) HERE:

The criteria for Soul Reaper is not that the target is sub-35%. It's that the target will be sub-35% within 5 seconds and not die before 5 seconds is up. That way, you actually get the explosion from Soul Reaper.